GEHR PEEK® HT
- Chemical Family
- Polyether Ether Ketone (PEEK)
GEHR PEEK® HT is one of our contributions to innovation is to extrude the new SOLVAY PEEK-HT material, which may be used in particular in the chemical industry. With PEEK-HT, Solvay developed a new material which has a glass transition temperature (170 °C) and heat deflection temperature (HDT/A=175 °C) that are both approx. 20 °C higher that those of PEEK, without losing its high chemical resistance. This is usually the case with the materials from the same material family, such as PEK, PEKK or PEKEKK. The melting point of PEEK-HT is approx. 385 °C. At the same time, it was possible to significantly increase the dielectric strength from 16 to 23 kV/mm. The raw material manufacturer now specifies a compressive strength of 160 MPa compared to the former value of 118 MPa. The notched impact strength, measured according to ASTM D256, is also specified with an increased value of 106 J/m compared to 91 J/m for standard PEEK.
Properties
- Physical Form
- Custom, Rods
- Custom
- Rods
Product families
- Equipment & Parts
- Housings & Enclosures
Other characteristics
- Brand
- GEHR PEEK
- Color
- Black
- Density
- 1300.0 - 1550.0 kg/m³
- Features
Chemical Resistant, Good Electrical Properties, Good Mechanical Properties, High Dielectric Strength, High Glass Transition Temperature, High Heat Deflection Temperature, Odorless
- Polymer Name
- Polyetheretherketone (PEEK)
- Odor
- Odorless
- Markets
- Electrical & Electronics
- Industrial
- Storage
The products shall be stored indoor to keep away from any source of degradation such as sunlight, UV-jets, ionizing radiation, chemicals.
- Machining
The product can be machined with standard machinery and tools. Before machining the product should be stored at room temperature 24 h. Evacuate swarf to prevent slipping or tripping. Observe the maximum allowable concentration of dust and formaldehyd levels on the working area which apply in your country. Wear safety goggles during machining. General dust limit value: Respirable dust (6 mg/m3); Inhalable dust (10 mg/m3 ).
- Properties
High chemical resistance (comparable to standard PEEK); Enhanced electrical properties (dielectric strength); Enhanced mechanical properties at higher temperatures; Both heat deflection temperature and glass transition temperature are approximately 20 °C higher than those of standard PEEK
- Flame Rating
- UL 94 V0
- Insoluble In
- Water
- Technology
- Plastics
- Labeling Claims
- Odor-free
- Safety Measures
The general industrial safety measures should be considered. A thermal damage during machining should be avoided.
- Product Families
- Plastics — Parts, Shapes & Films
- Form and Condition
- Rods. Sheets / Solid
- Material Features
- Chemical Resistant
- Good Electrical Properties
- Good Mechanical Properties
- High Dielectric Strength
- High Glass Transition Temperature
- High Heat Deflection Temperature
- Odorless
- Fire-Fighting Measures
Suitable extinguishing agents; Water, foam, dry chemical, carbon dioxide (CO2).; Potential combustion products; Carbon dioxide (CO2), carbon monoxide (CO). Formation of further decomposition and oxidation products depend upon the fire conditions. Under special fire conditions traces of other toxic substances are possible.; Special protective equipment; Wear a self-contained breathing apparatus. If exposed to combustion fumes bring the victim into fresh air.; Further information; Dispose of fire debris and contaminated extinguishing water in accordance with official regulations..
- Certifications and Compliance
- UL 94
- Plastics and Elastomers End Uses
- Electrical Housing
- Industrial Parts
- Plastics and Elastomers Processing Methods
- Extrusion
Technical data
Table 1 of 6
9 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Strength at Yield | 115 | MPa | ISO 527 |
| Elongation at Yield (S) | 7 | % | ISO 527 |
| Tensile Strength at Break | 67 | MPa | ISO 527 |
| Elongation at Break (R) | 16 | % | ISO 527 |
| Notch impact Strength (ak) | 4 | kJ/m2 | ISO 179 |
| Ball Indentation (Rockwell Hardness) | 250 (M 99) | MPa | ISO 2039 |
| Hardness | 90 | Shore D | ISO 868 |
| Flexural Strength (B 3,5 %) | 170 | MPa | ISO 178 |
| Modulus of elasticity (Et) | 4210 | MPa | ISO 527 |
Table 2 of 6
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity | 1.32 | — | ISO 1183 |
| Water Absorption | 0.4 | % | ISO 62 |
| Humidity Absorption | 0.07 | % | ISO 62 |
| Maximum Permissible Service Temperature | 260 | °C | UL746B |
| Lower Permissible Service Temperature | -40 | °C | UL746B |
Table 3 of 6
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Vicat Softening Point (VST/B/50) | 250 | °C | ISO 306 |
| Heat Deflection Temperature (HDT/B) | 240 | °C | ISO 75 |
| Heat Deflection Temperature (HDT/A) | 158 | °C | ISO 75 |
| Coefficient of Linear Thermal Expansion | 0.47 | K-1.10-4 | ISO 11359 |
| Thermal Conductivity (20°C) | 0.25 | W/(m.K) | ISO 22007-4 |
| Glass Transition Temperature (Tg) | 143 | °C | ISO 3146 |
| Melting Temperature (Tm) | 340 | °C | ISO 3146 |
Table 4 of 6
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Density | 1.30 - 1.55 | g/cm³ |
| Melting Temperature | min. 330 | °C |
| Ignition Temperature | min. 590 | °C |
Table 5 of 6
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Volume Resistivity | min. 10^13 | Ω.cm | IEC 60093 |
| Surface Resistivity (Ro) | min. 10^13 | Ω | IEC 60093 |
| Dielectric Constant (1MHz) | 3.2 | — | IEC 60250 |
| Dielectric Loss Factor (1 MHz) | 3 | — | IEC 60250 |
| Dielectric Strength | 16 | kV/mm | IEC 60243-1 |
| Tracking Resistance | CTI 125 | V | IEC 60112 |
Table 6 of 6
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Bondability | Yes | — | — |
| Physiological Indifference (EEC) | Yes | — | — |
| Physiological Indifference (FDA) | Yes | — | — |
| Flammability | V-0 | — | UL 94 |
| Limiting Oxygen Index (LOI, 9) | 35 | % | ASTM D2863 |
| UV Stabilisation (6, 9) | Limited | — | — |
